html, body {
    padding: 0;
    margin: 0;
}
* {
    box-sizing: border-box;
}
li {
    list-style: none;
}
a {
    text-decoration: none;
}
input::-webkit-input-placeholder {    /* Chrome/Opera/Safari */
    color: rgb(190,190,190);
    font-weight: 500;
}